Sony MZ-NH1 Service Manual page 46

MZ-NH1
Pin No. Pin Name
194 A7CAL_SW
195 SI0
196 SO0
197 SCK0
198 XGUM_ON
199 BEEP
200 XOPT_CTL
201 LAM_REQCHK
202 LAM_SPREQ
REC_LED
203
/ACCESS_LED
204 MDVCC_CTL
205 VBUS_VB_CTL
206 LAM_NAME
207 DRAM_ALONE
208 XRST_CHG_IC
209 PD_S0
210 PD_S1
211 D_ENREG
XMUTE
212
/MUTE
213 SI1
214 SO1
215 SCK1
216 SLD_MON
217 AOUT_SEL
218 SLEEP
219 FFCLR
220 CHGI_CTL1
221 CHGI_CTL2
222 CHGI_CTL3
223 SLBUSY
224 XTEST
225 XRF_RST
226 VREC_SEL
227 XHOLD_SW
228 T_MARK_SW
229 XRST2_DET
230 CHGI_SEL
231 RECP_MON
232 SPDL_MON
233 XCS_PWR_IC
234 RXD
235 TXD
236 XCS_LCD
237 N1_VI_CTL
46
I/O
O A7 offset voltage CAL on/off control signal output terminal
I Serial data input from the EEPROM and real time clock IC
O Serial data output to the EEPROM, real time clock IC, A/D converter and power controller
O Serial clock output to the EEPROM, real time clock IC, A/D converter and power controller
I Rechargeable battery detection switch input terminal
O Beep sound control signal output to the headphone amplifier
O Power supply on/off control signal output for the optical input jack
I LAM power check terminal Not used
O LAM force stop request signal output Not used
O REC LED drive signal output terminal
O Power supply control signal output for the OP modulation
O USB power supply control signal output terminal Not used
O LAM name data request signal output terminal Not used
O Self-refresh signal output for internal D-RAM
O Reset signal output to the charge controller
O Connect to the optical pick-up block
O Connect to the optical pick-up block
O Enable signal output to the headphone amplifier
O Muting on/off control signal output terminal
I Serial data input from the LCD module
O Serial data output to the LCD module
I/O Serial data transfer clock signal input/output terminal with the LCD module
I Sled servo monitoring terminal
O Headphone/line output switching terminal Not used
O Chip enable output to the power control IC
O Power on/off control signal output for FCRAM (internal RAM)
Charge current limiter control signal output at the time of AC adaptor use
O
"L": limit off, "H": limit on
O Charge current control signal output terminal "L": low current charge
O Charge current control signal output terminal "L": low current charge
I Receive signal monitoring terminal for sled command
I Terminal for the test mode setting (normally open) "L": test mode
O Reset signal output to the RF amplifier
O VREC start-up timing control signal output terminal Not used
I HOLD switch input terminal
I Track mark switch input terminal Not used
I Reset signal input from the power control IC
O Charge/discharge control signal output for current sense amplifier
I Laser power changeover signal monitoring terminal
I Spindle servo monitoring terminal
O Chip select signal output to the power control IC
I Not used
O Not used
O Chip select signal output to the LCD module
O Constant current circuit control signal output terminal
Description